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Pregled bibliografske jedinice broj: 1055692

A quantum many body model for the embedded electron spin decoherence in organic solids


Kveder, Marina; Rakvin, Boris; You, Jiangyang
A quantum many body model for the embedded electron spin decoherence in organic solids // The Journal of chemical physics, 151 (2019), 6; 164124, 9 doi:10.1063/1.5124561 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 1055692 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
A quantum many body model for the embedded electron spin decoherence in organic solids

Autori
Kveder, Marina ; Rakvin, Boris ; You, Jiangyang

Izvornik
The Journal of chemical physics (0021-9606) 151 (2019), 6; 164124, 9

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Electron paramagnetic resonance spectroscopy ; Spin model ; Polycrystalline material ; Organic solids ; Spin-spin interactions ; Nuclear magnetic resonance

Sažetak
We present a generalized nuclear spin bath model for embedded electron spin decoherence in organic solids at low temperatures which takes the crucial influence from hindered methyl group rotation tunnelling into account. This new, quantum many body model, after resolved using the cluster correlation expansion (CCE) method, predicts the the decoherence profiles directly from the proton relative position and methyl group tunnelling splitting inputs. Decoherence profiles from this model explain adequately the influence from both strongly and weakly hindered methyl groups to embedded electron spin decoherence: The former accelerates decoherence by increasing the nearest neighbour nuclear spin coupling, while the latter enhances {; ; ; ; \em coherence}; ; ; ; through a novel confinement-like mechanism, in which the very strong nuclear spin coupling from the tunnelling splitting term suppresses those protons on the methyl rotors from participating in the bath dynamics. Both types of influences are successfully proven experimentally in representative organic polycrystalline matrices: methyl malonic acid for strongly hindered and acetamide for weakly hindered methyl groups, respectively.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija



POVEZANOST RADA


Projekti:
HRZZ-IP-2013-11-1108 - Karakterizacija niskotemperaturne molekulske dinamike sustava s neuređenom rešetkom metodom ESR (DESiRe) (Ilakovac Kveder, Marina, HRZZ - 2013-11) ( POIROT)
HRZZ-IP-2018-01-3168 - Studija važnosti spinskih međudjelovanja kao osnova za nove pristupe u istraživanju materijala (SPES) (Ilakovac-Kveder, Marina, HRZZ - 2018-01) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Marina Ilakovac-Kveder (autor)

Avatar Url Jiangyang You (autor)

Avatar Url Boris Rakvin (autor)

Poveznice na cjeloviti tekst rada:

doi aip.scitation.org doi.org

Citiraj ovu publikaciju:

Kveder, Marina; Rakvin, Boris; You, Jiangyang
A quantum many body model for the embedded electron spin decoherence in organic solids // The Journal of chemical physics, 151 (2019), 6; 164124, 9 doi:10.1063/1.5124561 (međunarodna recenzija, članak, znanstveni)
Kveder, M., Rakvin, B. & You, J. (2019) A quantum many body model for the embedded electron spin decoherence in organic solids. The Journal of chemical physics, 151 (6), 164124, 9 doi:10.1063/1.5124561.
@article{article, author = {Kveder, Marina and Rakvin, Boris and You, Jiangyang}, year = {2019}, pages = {9}, DOI = {10.1063/1.5124561}, chapter = {164124}, keywords = {Electron paramagnetic resonance spectroscopy, Spin model, Polycrystalline material, Organic solids, Spin-spin interactions, Nuclear magnetic resonance}, journal = {The Journal of chemical physics}, doi = {10.1063/1.5124561}, volume = {151}, number = {6}, issn = {0021-9606}, title = {A quantum many body model for the embedded electron spin decoherence in organic solids}, keyword = {Electron paramagnetic resonance spectroscopy, Spin model, Polycrystalline material, Organic solids, Spin-spin interactions, Nuclear magnetic resonance}, chapternumber = {164124} }
@article{article, author = {Kveder, Marina and Rakvin, Boris and You, Jiangyang}, year = {2019}, pages = {9}, DOI = {10.1063/1.5124561}, chapter = {164124}, keywords = {Electron paramagnetic resonance spectroscopy, Spin model, Polycrystalline material, Organic solids, Spin-spin interactions, Nuclear magnetic resonance}, journal = {The Journal of chemical physics}, doi = {10.1063/1.5124561}, volume = {151}, number = {6}, issn = {0021-9606}, title = {A quantum many body model for the embedded electron spin decoherence in organic solids}, keyword = {Electron paramagnetic resonance spectroscopy, Spin model, Polycrystalline material, Organic solids, Spin-spin interactions, Nuclear magnetic resonance}, chapternumber = {164124} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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